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| 型號： | GTL2003 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit bidirectional low voltage translator |
| 中文描述： | 8位低電壓雙向翻譯 |
| 文件頁數(shù)： | 7/19頁 |
| 文件大小： | 101K |
| 代理商： | GTL2003 |
GTL2003_1
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 01 — 27 July 2007
7 of 19
NXP Semiconductors
GTL2003
8-bit bidirectional low voltage translator
8.4 Sizing pull-up resistor
The pull-up resistor value needs to limit the current through the pass transistor when it is
in the ‘on’ state to about 15 mA. This will guarantee a pass voltage of 260 mV to 350 mV.
If the current through the pass transistor is higher than 15 mA, the pass voltage will also
be higher in the ‘on’ state. To set the current through each pass transistor at 15 mA, the
pull-up resistor value is calculated as follows:
Table 6
summarizes resistor values for various reference voltages and currents at 15 mA
and also at 10 mA and 3 mA. The resistor value shown in the +10 % column or a larger
value should be used to ensure that the pass voltage of the transistor would be 350 mV or
less. The external driver must be able to sink the total current from the resistors on both
sides of the GTL-TVC device at 0.175 V, although the 15 mA only applies to current
flowing through the GTL-TVC device. See application note AN10145 Bidirectional low
voltage translatorsfor more information.
[1]
+ 10 % to compensate for V
DD
range and resistor tolerance.
Table 6.
Calculated for V
OL
= 0.35 V Assumes output driver V
OL
= 0.175 V at stated current.
Pull-up resistor value (
)
Voltage
15 mA
Nominal
+ 10 %
[1]
5.0 V
310
341
3.3 V
197
217
2.5 V
143
158
1.8 V
97
106
1.5 V
77
85
1.2 V
57
63
Pull-up resistor values
10 mA
3 mA
Nominal
465
295
215
145
115
85
+ 10 %
[1]
512
325
237
160
127
94
Nominal
1550
983
717
483
383
283
+ 10 %
[1]
1705
1082
788
532
422
312
resistor value
(
)
-----------------------------------------------------------------------------
0.015 A
=
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| GTL2003BQ | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit bidirectional low voltage translator |
| GTL2003BQ,115 | 功能描述:轉(zhuǎn)換 - 電壓電平 8-BIT GTL VOLTAGE RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8 |
| GTL2003BQ,115-CUT TAPE | 制造商:NXP 功能描述:GTL2003 Series I2C 8-Bit Bidirectional Low Voltage Translator - DHVQFN - 20 |
| GTL2003BQ,118 | 功能描述:轉(zhuǎn)換 - 電壓電平 8-bit bidirectional low volt translator RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8 |
| GTL2003BQ-G | 功能描述:轉(zhuǎn)換 - 電壓電平 8-BIT GTL VOLTAGE CLAMP TRANS RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8 |
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